Note that all five of the questions below must be answered
(number, curio text, last name, e-mail address and agree) for a curio
to be accepted. To encourage higher quality, submissions are limited
to one per day (see our
guidelines).

What curio do you wish to submit for the following number?

197210

Proposed Curio text: (guidelines,
the curio must be related to prime numbers)

Credit to who? Usually the last(=family) name, or
'anonymous' for anonymous